I can chirr you can chirr he can chirr we can chirr you can chirr they can chirr
Forme en V-ing
I can be chirring you can be chirring he can be chirring we can be chirring you can be chirring they can be chirring
Perfect
I can have chirred you can have chirred he can have chirred we can have chirred you can have chirred they can have chirred
Perfect en V-ing
I can have been chirring you can have been chirring he can have been chirring we can have been chirring you can have been chirring they can have been chirring
Négation
Forme simple
I cannot chirr you cannot chirr he cannot chirr we cannot chirr you cannot chirr they cannot chirr
Forme en V-ing
I cannot be chirring you cannot be chirring he cannot be chirring we cannot be chirring you cannot be chirring they cannot be chirring
Perfect
I cannot have chirred you cannot have chirred he cannot have chirred we cannot have chirred you cannot have chirred they cannot have chirred
Perfect en V-ing
I cannot have been chirring you cannot have been chirring he cannot have been chirring we cannot have been chirring you cannot have been chirring they cannot have been chirring
Forme interrogative
Forme simple
can I chirr? can you chirr? can he chirr? can we chirr? can you chirr? can they chirr?
Forme en V-ing
can I be chirring? can you be chirring? can he be chirring? can we be chirring? can you be chirring? can they be chirring?
Perfect
can I have chirred? can you have chirred? can he have chirred? can we have chirred? can you have chirred? can they have chirred?
Perfect en V-ing
can I have been chirring? can you have been chirring? can he have been chirring? can we have been chirring? can you have been chirring? can they have been chirring?
Forme interro-négative
Forme simple
can I not chirr? can you not chirr? can he not chirr? can we not chirr? can you not chirr? can they not chirr?
Forme en V-ing
can I not be chirring? can you not be chirring? can he not be chirring? can we not be chirring? can you not be chirring? can they not be chirring?
Perfect
can I not have chirred? can you not have chirred? can he not have chirred? can we not have chirred? can you not have chirred? can they not have chirred?
Perfect en V-ing
can I not have been chirring? can you not have been chirring? can he not have been chirring? can we not have been chirring? can you not have been chirring? can they not have been chirring?